Transport Area Working Group (tsvwg)
------------------------------------
Charter
Last Modified: 2007-10-10
Current Status: Active Working Group
Chair(s):
James Polk
Lars Eggert
Magnus Westerlund
Transport Area Director(s):
Magnus Westerlund
Lars Eggert
Transport Area Advisor:
Lars Eggert
Mailing Lists:
General Discussion:tsvwg@ietf.org
To Subscribe: tsvwg-request@ietf.org
In Body: subscribe email_address
Archive: http://www.ietf.org/mail-archive/web/tsvwg/index.html
Description of Working Group:
The Transport Area receives occasional proposals for the development
and publication of RFCs dealing with transport topics that are not in
scope of an existing working group or do not justify the formation of
a new working group. TSVWG will serve as the forum for developing
such work items in the IETF.
The TSVWG mailing list is an open discussion forum for such work
items, when they arise. The working group meets if there are active
proposals that require discussion. The working group milestones are
updated as needed to reflect the current work items and their
associated milestones.
The currently active TSVWG work items mostly fall under the following
topics:
(A) Maintenance of the Stream Control Transmission Protocol (SCTP),
which involves bug fixes to the SCTP specifications and their
progression along the standards track. This work item also includes a
small number of modular extensions to SCTP. Currently, these include
SCTP-ADDIP, SCTP-AUTH and SCTP-PADDING, as well as socket API and
threat analysis documents. In order to maintain stable
specifications, additional work on SCTP in TSVWG requires Area
Director approval.
(B) Maintenance of the Resource Reservation Protocol (RSVP), which
involves bug fixes to the RSVP specifications and their progression
along the standards track. This work item may also include a small
number of extensions to RSVP or advisory documents to address
specific application scenarios. In order to maintain stable
specifications, additional work on RSVP in TSVWG requires Area
Director approval.
(C) Maintenance of IP Differentiated Services (DiffServ) mechanisms,
which involves mostly advisory documents on the use of DiffServ in
specific application scenarios. Other work items related to DiffServ
require Area Director approval.
(D) Selected other work items, which are mostly in TSVWG for historic
reasons. These include an extended statistics MIB for TCP and the
quick-start mechanism for TCP and IP. Additional work that does not
fall under one of the above topics in TSVWG must satisfy four
conditions: (1) WG consensus on the suitability and projected quality
of the proposed work item. (2) A core group of WG participants with
sufficient energy and expertise to advance the work item according to
the proposed schedule. (3) Commitment from the WG as a whole to
provide sufficient and timely review of the proposed work item. (4)
Agreement by the ADs, who, depending on the scope of the proposed
work item, may decide that an IESG review is needed first.
Goals and Milestones:
Done Updates to RFC 793 to resolve conflict between diffserv and TCP
interpretation of IP Precedence submitted for publication as
Proposed Standard
Done Addition to RFC 2018 to use TCP SACK for detecting unnecessary
retransmissions submitted for publication as Proposed Standard
Done Submit I-D on TCP Congestion Window Validation to IESG for
consideration as a Proposed Standard
Done Submit I-D on Computing TCP's Retransmission Timer to IESG for
consideration as a Proposed Standard.
Done submit revised ID for ECN to IESG for consideration as a
proposed standard
Done submit ID on UDP-lite to IESG for consideration as a proposed
standard
Done TCP-Friendly Rate Control (TFRC) unicast congestion control
algorithm submitted to IESG for consideration as a proposed
standard
Done Submit ID for SCTP unreliable transport mode to IESG for
consideration as a Proposed Standard
Done Submit 'Alternate Semantics for the ECN Field' to IESG for
consideration as BCP
Done Submit 'Aggregation of RSVP Reservations over MPLS TE/DS-TE
Tunnels' to IESG for consideration as PS
Done Submit Submit 'QoS Signaling in a Nested Virtual Private
Network' to IESG for consideration as Informational
Done Submit 'Generic Aggregate RSVP Reservations' to IESG for
consideration as PS
Done Submit 'Quick-Start for TCP and IP' to IESG for consideration
as Experimental
Done Submit 'TCP Extended Statistics MIB' to IESG for consideration
as PS
Done Submit 'Authenticated Chunks for Stream Control Transmission
Protocol' to IESG as consideration as PS
Done Submit 'Padding Chunk and Parameter for SCTP' to IESG for
consideration as PS
Feb 2007 Submit 'RSVP Extensions for Emergency Services' to IESG for
consideration as Proposed Standard
Done Submit 'SCTP Dynamic Address Reconfiguration' to IESG for
consideration as Proposed Standard
Done Submit revision of 'Stream Control Transmission Protocol' to
IESG for consideration as Proposed Standard
Done Submit 'Security Attacks Found Against SCTP and Current
Countermeasures' to IESG for consideration as Informational
Jun 2007 Submit 'Sockets API Extensions for SCTP' to IESG for
consideration as Informational
Done Submit 'Specifying New Congestion Control Algorithms' to IESG
for consideration as Best Current Practice
Jul 2007 Submit 'Aggregation of DiffServ Service Classes' to IESG for
consideration as Informational
Jul 2007 Submit 'Explicit Congestion Marking in MPLS' to IESG for
consideration as Proposed Standard
Sep 2007 Submit 'DSCPs for Capacity-Admitted Traffic' to IESG for
consideration as Proposed Standard
Sep 2007 Submit 'User-Defined Errors for RSVP' to IESG for consideration
as Proposed Standard
Oct 2007 Submit 'RSVP Proxy Approaches' to IESG for consideration as
Informational
Oct 2007 Submit 'RSVP Extensions for Path-Triggered RSVP Receiver Proxy'
to IESG for consideration as Proposed Standard
Mar 2008 Submit 'UDP Usage Guidelines for Application Designers' to IESG
for consideration as Best Current Practice
Oct 2008 Submit 'Port Randomization for Transport Protocols' to the IESG
for consideration as a Proposed Standard
Internet-Drafts:
Posted Revised I-D Title
------ ------- --------------------------------------------
Jun 2001 Jul 2007
Sockets API Extensions for Stream Control Transmission Protocol
(SCTP)
Jun 2006 Nov 2007
Aggregation of DiffServ Service Classes
Oct 2006 Nov 2007
Resource ReSerVation Protovol (RSVP) Extensions for Emergency
Services
Dec 2006 Nov 2007
DSCPs for Capacity-Admitted Traffic
Feb 2007 Sep 2007
RSVP Proxy Approaches
Feb 2007 Oct 2007
RSVP Extensions for Path-Triggered RSVP Receiver Proxy
Mar 2007 Oct 2007
Explicit Congestion Marking in MPLS
Apr 2007 Oct 2007
User-Defined Errors for RSVP
May 2007 Nov 2007
UDP Usage Guidelines for Application Designers
Jun 2007 Oct 2007
MIB for the UDP-Lite protocol
Request For Comments:
RFC Stat Published Title
------- -- ----------- ------------------------------------
RFC2861 E Jun 2000 TCP Congestion Window Validation
RFC2883 PS Aug 2000 An Extension to the Selective Acknowledgement (SACK)
Option for TCP
RFC2988 PS Nov 2000 Computing TCP's Retransmission Timer
RFC3042 PS Jan 2001 Enhancing TCP's Loss Recovery Using Limited Transmit
RFC3168 PS Sep 2001 The Addition of Explicit Congestion Notification (ECN)
to IP
RFC3309 PS Oct 2002 Stream Control Transmission Protocol (SCTP) Checksum
Change
RFC3390 PS Nov 2002 Increasing TCP's Initial Window
RFC3436 PS Dec 2002 Transport Layer Security over Stream Control
Transmission Protocol
RFC3448 PS Jan 2003 TCP Friendly Rate Control (TFRC):Protocol Specification
RFC3517 PS Apr 2003 A Conservative Selective Acknowledgment (SACK)-based
Loss Recovery Algorithm for TCP
RFC3522 E May 2003 The Eifel Detection Algorithm for TCP
RFC3540 E Nov 2003 Robust ECN Signaling with Nonces
RFC3649 E Dec 2003 HighSpeed TCP for Large Congestion Windows
RFC3708 E Mar 2004 Using TCP DSACKs and SCTP Duplicate TSNs to Detect
Spurious Retransmissions
RFC3782Standard Apr 2004 The NewReno Modification to TCP's Fast Recovery
Algorithm
RFC3742 E May 2004 Limited Slow-Start for TCP with Large Congestion Windows
RFC3758Standard May 2004 SCTP Partial Reliability Extension
RFC3828Standard Jul 2004 The UDP-Lite Protocol
RFC4015Standard Feb 2005 The Eifel Response Algorithm for TCP
RFC4460 I Apr 2006 Stream Control Transmission Protocol (SCTP)
Specification Errata and Issues
RFC4495 PS May 2006 A Resource Reservation Protocol (RSVP) Extension for the
Reduction of Bandwidth of a Reservation Flow
RFC4542 I May 2006 Implementing an Emergency Telecommunications Service
(ETS) for Real Time Services in the Internet Protocol
Suite
RFC4594 I Aug 2006 Configuration Guidelines for DiffServ Service Classes
RFC4774BCP Nov 2006 Specifying Alternate Semantics for the Explicit
Congestion Notification (ECN) Field
RFC4782 E Jan 2007 Quick-Start for TCP and IP
RFC4804 PS Feb 2007 Aggregation of Resource ReSerVation Protocol (RSVP)
Reservations over MPLS TE/DS-TE Tunnels
RFC4820 PS Mar 2007 Padding Chunk and Parameter for the Stream Control
Transmission Protocol (SCTP)
RFC4860 PS May 2007 Generic Aggregate Resource ReSerVation Protocol (RSVP)
Reservations
RFC4898 PS May 2007 TCP Extended Statistics MIB
RFC4923 I Aug 2007 Quality of Service (QoS) Signaling in a Nested Virtual
Private Network
RFC5033BCP Aug 2007 Specifying New Congestion Control Algorithms
RFC4895 PS Aug 2007 Authenticated Chunks for Stream Control Transmission
Protocol (SCTP)
RFC5061 PS Sep 2007 Stream Control Transmission Protocol (SCTP) Dynamic
Address Reconfiguration
RFC4960 PS Sep 2007 Stream Control Transmission Protocol
RFC5062 I Sep 2007 Security Attacks Found Against SCTP and Current
Countermeasures